I am using a Canon PIXMA610 with the single problem of scanning a document and I am running 10.14.3....
Would I be correct to assume that the scanning software is MP Navigator Ex ? Is it Ver. 5.1.2 ?
I did not know about the potential 'threat' with 10.15 ....
For about 6 months, I've read it in a few places......Mojave 10.15 will be when Apple finally says: "We're done with 32 bit". People are recommending that, if you have 32 bit apps and want to go to Mojave...do it before 10.15.